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RSS2016 Vol. 28, No. 01
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2016,
28: 010201.
doi: 10.11884/HPLPB201628.010201
Abstract:
Dragon-Ⅱaccelerator can provide three pulse electron beams under MHz repetition rate what the performance of each pulse electron beam is 18-20 MeV, 2.1 kA, 60 ns pulse length. Three pulses with adjustable spacing(300 ns minimum spacing) are delivered...
Dragon-Ⅱaccelerator can provide three pulse electron beams under MHz repetition rate what the performance of each pulse electron beam is 18-20 MeV, 2.1 kA, 60 ns pulse length. Three pulses with adjustable spacing(300 ns minimum spacing) are delivered...
2016,
28: 014001.
doi: 10.11884/HPLPB201628.014001
Abstract:
The measurement of repeatability for X-ray source position between several experiments was proposed. The difference between several images of the same object indicated the repeatability of the X-ray source position. First, a shell object was radiogra...
The measurement of repeatability for X-ray source position between several experiments was proposed. The difference between several images of the same object indicated the repeatability of the X-ray source position. First, a shell object was radiogra...
2016,
28: 014002.
doi: 10.11884/HPLPB201628.014002
Abstract:
High energy electron radiography(eRad) can quantitatively measure target material and its internal structure without taking target apart, it is a new NDT (nondestructive testing) technique. Compared with high energy proton radiography, eRad has submi...
High energy electron radiography(eRad) can quantitatively measure target material and its internal structure without taking target apart, it is a new NDT (nondestructive testing) technique. Compared with high energy proton radiography, eRad has submi...
2016,
28: 019901.
doi: 10.11884/HPLPB201628.019901
Abstract:
The SG-Ⅲ laser facility has successfully demonstrated its capability to deliver 60 TW/180 kJ ultraviolet laser (351 nm) onto the target, which establishes it the worlds second and Asias largest laser driver for inertial confinement fusion (ICF) resea...
The SG-Ⅲ laser facility has successfully demonstrated its capability to deliver 60 TW/180 kJ ultraviolet laser (351 nm) onto the target, which establishes it the worlds second and Asias largest laser driver for inertial confinement fusion (ICF) resea...
2016,
28: 014003.
doi: 10.11884/HPLPB201628.014003
Abstract:
This paper introduces a 450 kV digital X-ray diagnostic system composed of a 450 kV pulsed X-ray system and an anti-radiation X-ray CCD camera. The 450 kV pulsed X-ray system is designed according to the principle of bipolar charged Marx generator. T...
This paper introduces a 450 kV digital X-ray diagnostic system composed of a 450 kV pulsed X-ray system and an anti-radiation X-ray CCD camera. The 450 kV pulsed X-ray system is designed according to the principle of bipolar charged Marx generator. T...
2016,
28: 014004.
doi: 10.11884/HPLPB201628.014004
Abstract:
Monte Carlo imaging simulation is applied to investigate the impact of filter material properties on accurate and robust reconstruction of the high-energy X-ray spectrum based on the attenuated transmission principle. A model of multi-collimating ape...
Monte Carlo imaging simulation is applied to investigate the impact of filter material properties on accurate and robust reconstruction of the high-energy X-ray spectrum based on the attenuated transmission principle. A model of multi-collimating ape...
2016,
28: 014005.
doi: 10.11884/HPLPB201628.014005
Abstract:
A low impedance large surface diode system with high purity graphite ring cathode and organic glass insulation is developed. The diode is optimally designed by using theoretical calculation and numerical simulation. Under the premise of ensuring the ...
A low impedance large surface diode system with high purity graphite ring cathode and organic glass insulation is developed. The diode is optimally designed by using theoretical calculation and numerical simulation. Under the premise of ensuring the ...
2016,
28: 014006.
doi: 10.11884/HPLPB201628.014006
Abstract:
It was hard to measure the fluence of pulse hard X-ray directly in the field of high power particle beam. The method of measuring the fluence of pulse hard X-ray was defined, and the basic theory of full-cell processes was introduced. The phototubes ...
It was hard to measure the fluence of pulse hard X-ray directly in the field of high power particle beam. The method of measuring the fluence of pulse hard X-ray was defined, and the basic theory of full-cell processes was introduced. The phototubes ...
2016,
28: 015001.
doi: 10.11884/HPLPB201628.015001
Abstract:
Avalanche transistor is a kind of ideal semiconductor device which can provide fast response and high pulse power at the same time, it can conveniently produce high power pulse with nano/subnanosecond rising edge. In this paper, three different types...
Avalanche transistor is a kind of ideal semiconductor device which can provide fast response and high pulse power at the same time, it can conveniently produce high power pulse with nano/subnanosecond rising edge. In this paper, three different types...
2016,
28: 015002.
doi: 10.11884/HPLPB201628.015002
Abstract:
A triple resonance pulse transformer is developed based on a taper dual-winding magnetic core transformer, it has the advantages of is compact structure, small size and so on. The magnetic core of the transformer is made of 0.08 mm thick silicon stee...
A triple resonance pulse transformer is developed based on a taper dual-winding magnetic core transformer, it has the advantages of is compact structure, small size and so on. The magnetic core of the transformer is made of 0.08 mm thick silicon stee...
2016,
28: 015003.
doi: 10.11884/HPLPB201628.015003
Abstract:
The paper introduces a compact 200 kV/200 kA pulse source for hard X ray driving source. It consists of power storage Marx generator, water medium forming line and transmission line, gas switch, and load. It was optimized to include changing resistan...
The paper introduces a compact 200 kV/200 kA pulse source for hard X ray driving source. It consists of power storage Marx generator, water medium forming line and transmission line, gas switch, and load. It was optimized to include changing resistan...
2016,
28: 015004.
doi: 10.11884/HPLPB201628.015004
Abstract:
In order to satisfy the requirement of the lower hybrid current driven(LHCD) system on HL-2A, the high voltage power supply based on pulse step modulator is designed and analyzed. Many modules are connected in series, and the output voltage can be ad...
In order to satisfy the requirement of the lower hybrid current driven(LHCD) system on HL-2A, the high voltage power supply based on pulse step modulator is designed and analyzed. Many modules are connected in series, and the output voltage can be ad...
2016,
28: 015005.
doi: 10.11884/HPLPB201628.015005
Abstract:
A 0.1 Hz, 800 kA LTD stage for the Z-pinch driven fusion-fission hybrid reactor (Z-FFR) has been developed. The stage consists of 34 bricks, which are coupled through 4 matglas magnetic cores. Each brick has two 40 nF/100 kV capacitors and a gas swit...
A 0.1 Hz, 800 kA LTD stage for the Z-pinch driven fusion-fission hybrid reactor (Z-FFR) has been developed. The stage consists of 34 bricks, which are coupled through 4 matglas magnetic cores. Each brick has two 40 nF/100 kV capacitors and a gas swit...
2016,
28: 015006.
doi: 10.11884/HPLPB201628.015006
Abstract:
Due to the coupling problem, the output efficiency of the accelerating unit for the dielectric wall accelerator is reduced. With electromagnetic field simulation software based on FDTD method, the multi-plate Blumlein lines loading the high gradient ...
Due to the coupling problem, the output efficiency of the accelerating unit for the dielectric wall accelerator is reduced. With electromagnetic field simulation software based on FDTD method, the multi-plate Blumlein lines loading the high gradient ...
2016,
28: 015007.
doi: 10.11884/HPLPB201628.015007
Abstract:
In order to conduct experimental study effectively, the scaling method used in a small or medium caliber railgun launcher was analyzed and improved. In consideration of the feasibility of the experimental conditions, studies on the electromagnetic fi...
In order to conduct experimental study effectively, the scaling method used in a small or medium caliber railgun launcher was analyzed and improved. In consideration of the feasibility of the experimental conditions, studies on the electromagnetic fi...
2016,
28: 015008.
doi: 10.11884/HPLPB201628.015008
Abstract:
High-voltage pulse fracturing technology is based on the electro-hydraulic effect principle, where strong shock wave generated by the discharge of water pulse creates cracks in the rock. It has become a hot research subject in the field of rock fract...
High-voltage pulse fracturing technology is based on the electro-hydraulic effect principle, where strong shock wave generated by the discharge of water pulse creates cracks in the rock. It has become a hot research subject in the field of rock fract...
2016,
28: 015009.
doi: 10.11884/HPLPB201628.015009
Abstract:
In this paper, DPHCs function in PTS facility was preliminarily explored using NEPTUNE3D code. A series of cold-chamber tests were calculated and analyzed, in which only the electron emission on cathode surface was considered without energy depositio...
In this paper, DPHCs function in PTS facility was preliminarily explored using NEPTUNE3D code. A series of cold-chamber tests were calculated and analyzed, in which only the electron emission on cathode surface was considered without energy depositio...
2016,
28: 015010.
doi: 10.11884/HPLPB201628.015010
Abstract:
Parasite parameters caused by winding have negative impact on broadband complex permeability measurement. This paper identifies the effects of winding resistance, parasite capacitor and leakage inductance. The impact of each parasite parameter is qua...
Parasite parameters caused by winding have negative impact on broadband complex permeability measurement. This paper identifies the effects of winding resistance, parasite capacitor and leakage inductance. The impact of each parasite parameter is qua...
2016,
28: 015011.
doi: 10.11884/HPLPB201628.015011
Abstract:
The surface damage of the lens in high voltage, high current laser triggered gas switch is analyzed, based on the measurements of optical transmission, the analysis of the mist material on the lens surface and the statistic of exposure time. Both the...
The surface damage of the lens in high voltage, high current laser triggered gas switch is analyzed, based on the measurements of optical transmission, the analysis of the mist material on the lens surface and the statistic of exposure time. Both the...
2016,
28: 015012.
doi: 10.11884/HPLPB201628.015012
Abstract:
An improved coaxial high-voltage ceramic vacuum interface applied in a repetitive pulse generator, was designed and tested. Results from electro-static calculation by ANSYS show that the electric field (E-field) distribution within the improved inter...
An improved coaxial high-voltage ceramic vacuum interface applied in a repetitive pulse generator, was designed and tested. Results from electro-static calculation by ANSYS show that the electric field (E-field) distribution within the improved inter...
2016,
28: 015013.
doi: 10.11884/HPLPB201628.015013
Abstract:
A compact repetitive PFN-Marx generator was constructed for the application of generating electron beams. The generator has twenty-two stages with inductive isolation. Each stage consists of twenty-one ceramic capacitors which may be charged the maxi...
A compact repetitive PFN-Marx generator was constructed for the application of generating electron beams. The generator has twenty-two stages with inductive isolation. Each stage consists of twenty-one ceramic capacitors which may be charged the maxi...
2016,
28: 015014.
doi: 10.11884/HPLPB201628.015014
Abstract:
In order to study the electromagnetic pulse forming and transmission in the PTS facility, and to optimize the performance to get the desired driving currents for the load design, a full circuit model were founded to describe the charging and discharg...
In order to study the electromagnetic pulse forming and transmission in the PTS facility, and to optimize the performance to get the desired driving currents for the load design, a full circuit model were founded to describe the charging and discharg...
2016,
28: 015015.
doi: 10.11884/HPLPB201628.015015
Abstract:
Isentropic compression experiments have been developed for the study of the equation of state for materials at extreme pressures. We use the PTS facility to achieve a quasi-isentropic compression and hyper-velocity flyer launch. A series of experimen...
Isentropic compression experiments have been developed for the study of the equation of state for materials at extreme pressures. We use the PTS facility to achieve a quasi-isentropic compression and hyper-velocity flyer launch. A series of experimen...
2016,
28: 015016.
doi: 10.11884/HPLPB201628.015016
Abstract:
The high-voltage DC power supply is widely used in scientific experiments and industrial production. To meet the requirements of high stability and low ripple of high voltage power for EBIT, the paper focuses on a designing a high-voltage DC power su...
The high-voltage DC power supply is widely used in scientific experiments and industrial production. To meet the requirements of high stability and low ripple of high voltage power for EBIT, the paper focuses on a designing a high-voltage DC power su...
2016,
28: 015017.
doi: 10.11884/HPLPB201628.015017
Abstract:
As the glycerol medium has important applications in the pulse forming line, its breakdown characteristics are studied experimentally in a scaled coaxial specimen under different conditions, including electrode surface, magnetic field, bubbles and so...
As the glycerol medium has important applications in the pulse forming line, its breakdown characteristics are studied experimentally in a scaled coaxial specimen under different conditions, including electrode surface, magnetic field, bubbles and so...
2016,
28: 015018.
doi: 10.11884/HPLPB201628.015018
Abstract:
The design scheme of a trigger generator applied to multiple spark gaps based on Tesla pulse transformer was proposed. The voltage distribution characteristics of multiple spark gaps under DC and pulse voltage were introduced, and the main influence ...
The design scheme of a trigger generator applied to multiple spark gaps based on Tesla pulse transformer was proposed. The voltage distribution characteristics of multiple spark gaps under DC and pulse voltage were introduced, and the main influence ...
2016,
28: 015019.
doi: 10.11884/HPLPB201628.015019
Abstract:
The effects of glow discharge frequency, current magnitude and treatment time are studied by using glow discharge to treat the insulator in order to improve the flashover voltage of insulator in vacuum. Experiment results show that the flashover volt...
The effects of glow discharge frequency, current magnitude and treatment time are studied by using glow discharge to treat the insulator in order to improve the flashover voltage of insulator in vacuum. Experiment results show that the flashover volt...
2016,
28: 015020.
doi: 10.11884/HPLPB201628.015020
Abstract:
A trigger circuit was developed for triggered vacuum switch (TVS) with more than 20 mm gap distance. The trigger circuit generate a high pulse voltage by pulse transformer, parallel a small capacitor on the output of the transformer and series a shar...
A trigger circuit was developed for triggered vacuum switch (TVS) with more than 20 mm gap distance. The trigger circuit generate a high pulse voltage by pulse transformer, parallel a small capacitor on the output of the transformer and series a shar...
2016,
28: 015021.
doi: 10.11884/HPLPB201628.015021
Abstract:
The time sequence control of the Marx generators, laser-triggered gas switches(LTS), self-break water switches (WS) which affects the PTS synchronization was studied. Synchronization of Marx generators affects energy efficiency of transmission proces...
The time sequence control of the Marx generators, laser-triggered gas switches(LTS), self-break water switches (WS) which affects the PTS synchronization was studied. Synchronization of Marx generators affects energy efficiency of transmission proces...
2016,
28: 015022.
doi: 10.11884/HPLPB201628.015022
Abstract:
The disk electrode of a gas switch with different materials is studied by self-breakdown experiment in slightly uneven electric field. In the self-breakdown experiment, the gap length and the gas pressure of the switches are identical .The gap length...
The disk electrode of a gas switch with different materials is studied by self-breakdown experiment in slightly uneven electric field. In the self-breakdown experiment, the gap length and the gas pressure of the switches are identical .The gap length...
2016,
28: 015023.
doi: 10.11884/HPLPB201628.015023
Abstract:
In this paper, a microsecond-pulse generator with a rise time of about 0.5 s, a pulse width of about 6 s and an amplitude of up to 40 kV, and a nanosecond-pulse generator with a rise time of about 150 ns, a pulse width of about 300 ns and an amplitud...
In this paper, a microsecond-pulse generator with a rise time of about 0.5 s, a pulse width of about 6 s and an amplitude of up to 40 kV, and a nanosecond-pulse generator with a rise time of about 150 ns, a pulse width of about 300 ns and an amplitud...
2016,
28: 015024.
doi: 10.11884/HPLPB201628.015024
Abstract:
Except for the integrated charge transferred, the effective area of discharge electrode and pollution of discharge spatters on insulator shell are major limiting factors to the gas spark switch lifetime. After theoretic analysis, increasing electrode...
Except for the integrated charge transferred, the effective area of discharge electrode and pollution of discharge spatters on insulator shell are major limiting factors to the gas spark switch lifetime. After theoretic analysis, increasing electrode...
2016,
28: 015025.
doi: 10.11884/HPLPB201628.015025
Abstract:
Operating principle of series diode is introduced and an equivalent circuit of series diode is built to analyze its working process. Circuit simulation is done to find the influencing factors of series diode working process. Voltage dividing of serie...
Operating principle of series diode is introduced and an equivalent circuit of series diode is built to analyze its working process. Circuit simulation is done to find the influencing factors of series diode working process. Voltage dividing of serie...
2016,
28: 015026.
doi: 10.11884/HPLPB201628.015026
Abstract:
The frequency response of B-dot monitors fielded in the cavity of magnetically-insulated transmission lines is analyzed. The equivalent sensitivity of B-dot monitors in the cavity could be increased at low frequencies. The B-dot monitor behaves appro...
The frequency response of B-dot monitors fielded in the cavity of magnetically-insulated transmission lines is analyzed. The equivalent sensitivity of B-dot monitors in the cavity could be increased at low frequencies. The B-dot monitor behaves appro...
2016,
28: 015027.
doi: 10.11884/HPLPB201628.015027
Abstract:
We have measured X-ray, optical and microwave radiations from two parallel wires driven by a current rising to 220 kA in 100 ns. The experimental results imply that they are generated by different radiation mechanism. X-ray is generated by thermal ra...
We have measured X-ray, optical and microwave radiations from two parallel wires driven by a current rising to 220 kA in 100 ns. The experimental results imply that they are generated by different radiation mechanism. X-ray is generated by thermal ra...
2016,
28: 015101.
doi: 10.11884/HPLPB201628.015101
Abstract:
In the commissioning of a linear induction accelerator, cavity voltage waveforms measured by capacitor voltage probe (CVP) and resistor divider were almost the same when there was no beam load. The waveforms were different when there was a beam load....
In the commissioning of a linear induction accelerator, cavity voltage waveforms measured by capacitor voltage probe (CVP) and resistor divider were almost the same when there was no beam load. The waveforms were different when there was a beam load....
2016,
28: 015102.
doi: 10.11884/HPLPB201628.015102
Abstract:
A new method with frequency domain processing was used in processing the output signals of axial B-dot beam angle monitor. By this method, the valuable signals were derived from the signals in frequency domain with other disturbing signals eliminated...
A new method with frequency domain processing was used in processing the output signals of axial B-dot beam angle monitor. By this method, the valuable signals were derived from the signals in frequency domain with other disturbing signals eliminated...
2016,
28: 015103.
doi: 10.11884/HPLPB201628.015103
Abstract:
For the requirements of SGEMP research, the Flash-Ⅱ accelerator has been transformed to improve the simulation capability of pulsed hard X rays. A two-stage waterline together with its water switches was adopted to upgrade the driver. The experimenta...
For the requirements of SGEMP research, the Flash-Ⅱ accelerator has been transformed to improve the simulation capability of pulsed hard X rays. A two-stage waterline together with its water switches was adopted to upgrade the driver. The experimenta...
2016,
28: 015104.
doi: 10.11884/HPLPB201628.015104
Abstract:
Circuit models and mathematical expressions are built to analyse how much the circuit parameters of induction cavity affect the flattop of the induction pulse voltage. Two kinds of pulse-power system (PPS) are considered, one is based on the pulse fo...
Circuit models and mathematical expressions are built to analyse how much the circuit parameters of induction cavity affect the flattop of the induction pulse voltage. Two kinds of pulse-power system (PPS) are considered, one is based on the pulse fo...
